Down from the Hills
The Voice of Isengard#22 (x1/x0)
Treachery

When Revealed: Each player must choose: Either remove 1 time counter from the current quest, or search the encounter deck and discard pile for a Dunland enemy, reveal it, and add it to the staging area. Shuffle the encounter deck. If any player has 5 or more cards in hand, this effect cannot be canceled.